package com.yihen.service;

import com.yihen.bean.Weight;
import com.yihen.dto.Result;

public interface WeightService {

    // 新增体重记录
    public Result addWeight(Weight weight);

    // 获取特定时间段内的体重数据
    public Result getWeightByDate(Long userId, String startDate, String endDate);
}
